(svn r18781) -Codechange: pass the CommandCost to the callback instead of whether it succeeded or not.

-Fix: AIs did update their last cost incorrectly in network games if the cost of the DC_EXEC phase differed from the ~DC_EXEC phase.

src/terraform_gui.h

@@ -14,8 +14,6 @@
 
 #include "window_type.h"
 
-void CcTerraform(bool success, TileIndex tile, uint32 p1, uint32 p2);
-
 Window *ShowTerraformToolbar(Window *link = NULL);
 void ShowTerraformToolbarWithTool(uint16 key, uint16 keycode);
 Window *ShowEditorTerraformToolbar();